package com.sky.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.sky.constant.MessageConstant;
import com.sky.dto.UserLoginDTO;
import com.sky.entity.User;
import com.sky.exception.LoginFailedException;
import com.sky.mapper.UserMapper;
import com.sky.properties.WeChatProperties;
import com.sky.service.UserService;
import com.sky.utils.HttpClientUtil;
import com.sky.vo.UserReportVO;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Service
@Slf4j
@RequiredArgsConstructor
public class UserServiceImpl implements UserService {
    //微信服务接口地址
    public static final String WX_LOGIN="https://api.weixin.qq.com/sns/jscode2session";

    private final UserMapper userMapper;

    private final WeChatProperties weChatProperties;
    @Override
    public User wxLogin(UserLoginDTO userLoginDTO) {
        //调用微信接口服务，获得openid
        String openid = getOpenid(userLoginDTO.getCode());
        //如果为空登陆异常
        if(openid==null){
            throw new LoginFailedException(MessageConstant.LOGIN_FAILED);
        }
        //查询数据库看是不是新用户
        User user = userMapper.getByOpenid(openid);
        //如果是新用户自动完成注册
        if(user==null){
            user = User.builder()
                    .openid(openid)
                    .createTime(LocalDateTime.now())
                    .build();
            userMapper.insert(user);
        }
        //返回用户对象
        return user;
    }

    /**
     * 调用微信接口服务，获得openid
     * @param code
     * @return
     */
     private String getOpenid(String code) {
        HashMap<String, String> map = new HashMap<>();

        map.put("appid",weChatProperties.getAppid());
        map.put("secret",weChatProperties.getSecret());
        map.put("js_code", code);
        map.put("grant_type","authorization_code");

        String json = HttpClientUtil.doGet(WX_LOGIN, map);

        JSONObject jsonObject = JSONObject.parseObject(json);
        return jsonObject.getString("openid");
    }
}
